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bio101 unit 4

QuestionAnswer
Convergence Multiple axons
Saltatory conduction Faster; node to node
Dura mater Outermost layer
Arachnoid mater Middle layer
Dendrites Receive signals
Oligodendrocytes CNS
Major regions of the brain Cerebrum, cerebellum, brain stem
Main cells of nervous tissue Neurons + neuroglia
PNS Cranial nerves and spinal nerves
Motor Efferent
Somatic nervous system Skeletal muscle
Cell body Contains the nucleus
Myelin Fat + protein
Vision Occipital lobe
Judgment Frontal lobe
Skeletal muscle neurotransmitter ACh (acetylcholine)
Does potassium enter during an action potential? False, potassium leaves
Sodium-potassium pump 3 Na+ out, 2 K+ in
Microglia Phagocytes
Ependymal cells Help produce and circulate cerebrospinal fluid (CSF)
Epineurium Outermost connective tissue covering of a nerve
Hyperpolarization Membrane potential goes below resting level
Threshold Level that activates/triggers an action potential
Created by: jullian18
 

 



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